Adding and recording machine.



No. 763,692. PATENTED JUNE 28, 1904. W. H. PIKE, JR.

ADDING AND RECORDING MACHINE.

APPLIOATION FILED AUG. 19, 1902.

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PATENTED JUNE 28, 1904.

W. H. PIKE, JR. ADDING AND RECORDING MACHINE.

APPLICATION FILED AUG.19. 1902.

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ADDING AND RECORDING MACHINE.

APPLIOATION FILED A-UG.19. 1902..

PATENTED JUNE 28, 1904.

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APPLIOATION FILED AUG.19. 1902.

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No. 763,692. I PATENTED JUNE 28. 1904.

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ADDING AND RECORDING MACHINE.

APPLICATION FILED AUG. 19. 1902.

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PATENTED JUNE 28, 1904.

W. H. PIKE, JR. ADDING AND RECORDING MACHINE.

APPLIOATION FILED AUG.19. 1902.

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No. 763,692; PATENTED JUNE 28, 1904. W. H. PIKE, JR.

ADDING AND RECORDING MACHINE.

APPLICATION FILED AUG. 19. 1902.

N0 MODEL. 13 SHEETS-SHEET 8.

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PATENTED JUNE 28, 1904.

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APPLICATION FILED AUG. 19. 1902.

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PATENTED JUNE 28, 1904.

W. H. PIKE, JR. ADDING AND RECORDING MACHINE.

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No. 763,692. PATENTED JUNE 28, 1.904. W. H. PIKE, JR.

ADDING AND RECORDING MACHINE APPLICATION FILED AUG. 19l 1902. N0 MODEL.

13 SHEETS-SHEET l3- lllmIII THE Noflms PETERS w PMOYO-LITMO, msuwmm, myC UNITED STATES Patented June 28 1904.

PATENT OFFICE.

WILLIAM HENRY PIKE, JR, OF ST. LOUIS, MISSOURI, ASSICNOR, BY DIRECT ANDMESNE ASSIGNMENTS, TO PIKE ADDING MACHINE COMPANY, OF ST. LOUIS,MISSOURI, A CORPORATION OF MISSOURI.

I ADDING AND RECORDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 763,692, dated June 28,1904.

Application filed August 19, 1902. Serial No. 120,222. (No model.)

To (LZZ whom it may concern:

1 keys for each adding-wheel; but some features of the invention couldbe employed on adding-machines using one series of keys only for all theadding-wheels, and it is to be understood that while my invention asillustrated and described is embodied in a machine having several seriesof keys I do not intend to restrict myself to the use of some of thefeatures in any special class of machines.

The object of my invention is to generally improve the structure andmode of operation of adding and recording machines, and particularly toproduce one which can be operated with a minimum of eifort on the partof the operator and in which the possibility of involuntary error inmanipulation is almost entirely eliminated.

The invention will be fully described hereinafter, reference being hadto the accompanying drawings, in which Figure 1 is a perspective view ofa machine embodying my invention. Fig. 2 is a sectional side elevation.Fig. 3 is a plan view with the paper-carriage removed. Fig. 4 is alongitudinal central section of a portion of the machine on the line I 4of Fig. 3. Fig. 5 is a sectional side elevation on line 5 5 of Fig. 3 ofthe rear portion of the machine. Fig. 6 is a similar view, also on theline 5 5 of Fig. 3, of the front portion of the machine. Fig. 7 is apart plan of Fig. 6. Fig. 8 is a sectional elevation of thetype-striking mechanism and adjuncts; Fig. 8, an enlarged view of one ofthe types and supports. Fig.

mechanism on line 18 18 of Fig. 20.

9 is a front view of Fig. 8. Fig. 10 is a side view of the total andsubtotal actuating mechanisms. Fig. 11 is a plan view of Fig. 10. Fig.12 is a sectional elevation on the line 12 12 of Fig. 11. Fig. 13 is adetail perspective view of a detent-shifting device used in connectionwith the total and subtotal mechanisms. Fig. lei is a side elevation ofthe driving and starting mechanism. Fig. 15 is a plan of the same inpart section. Fig. 16 is a sectional view of the key-operated mechanism.Fig. 17 is a vertical section on line 17 17 of Fig. 16 looking in thedirection of the arrow. Fig. 18 is a sectional side view of the addingFig. 19 is a similar view on line 19 19 of Fig. 20. Fig. 20 is a planview of a portion of the adding mechanism; Fig. 21, a detail view of thefriction disks and rings of the driving mechanism; Fig. 22, a planshowing the arrangement of numbers at the lower ends of the types ofeach carrier.

The (hiringmeans. Ais the base. 313represents adding-wheels,and 201represents keys in series, each series numbered 1 to 9. The workingshaft 922, Figs. 4, 14, 15, is a rock-shaft with two arms 90a and 905 atone end, and to the arm 904: is connected a link 109, also connected tothe side of a cam-disk 115, Figs. 5 and 14, on a short shaft 176, aroundwhich turns a hollow driving-shaft 175.

All the movements of the different parts of the machine necessary to addand record any number after depressing the necessary keys are impartedon a single movement or revolution of the shaft 1'76, which is thenarrested at a point where the said parts have assumed their normalposition of rest. To avoid the delay, labor, and uncertainties resultingfrom operating the working shaft by hand, the shaft 175 is drivencontinuously from a suitable motor and has such a frictional or otherconnection with the shaft 176 that the two will turn together so long asthe shaft 176 is free to turn; but when the rotation of the shaft 176 isarrested that of the shaft 175 may continue. Any suitable fricthe latch17 8.

tional or other connection capable of permitting the shaft 176 to bearrested when required may be used; but one which has proved effectivewill now be described.

The shaft 17 6 is provided with a series of disks 100, fitted on theshaft to turn with it, but movable on the shaft lengthwise. Alternatingwith these disks are rings 101, fitted to turn loosely on the shaft 176and having projections 101 on their peripheries, and between each ring101 and disk 100 is a ring 180, of non-abrasive material, these rings180 being also fitted to turn loosely on the shaft 176. The shaft 176 isthreaded to receive a nut 150, and a springwasher 102 is interposedbetween the nut and the outer disk 100, and by adjusting the nut therings and disks are pressed together. The inner end of the shaft 17 5 isenlarged and recessed, so as to inclose the rings and disks, and isprovided with suitable grooves 172 to receive the projections- 101 ofthe rings 101. The pressure ofthe nut 150 and washer 102 producesfriction between the disks 100 and rings 101 and 180, which tends toturn the auxiliary shaft 176, supporting the disks. These partsconstitute the frictional connection between the shafts 175 176, sothat, although the shaft 175, Fig. 15, rotates continuously, the shaft176, which operates the parts of the machine, cannot start until adetentfor instance, a latch 17 8- is lifted from the shoulder 110 of thecamdisk 115. This results from depressing a key 103 Figs. 1 and 14,thereby rocking a lever 105, connected therewith, and raising a link104, on the upper end of which bears a lug 134 on the latch 178. Aspring 112 draws down A cam 106 on the shaft 176 on each rotation pushesback the link 104 from below the stud 134, so that the latch 178 willdrop into position to be struck by the shoulder 110 and stop theoperation of the said parts after each number is registered orrecordedas, for instance, at the end of a complete rotation of the shaftand after effecting a complete oscillation of the shaft 922-and thisresults even if the key 103 is held down continuously. It will be seenthat the working shaft is not actuated by the power of the operator, butis positively driven by the motor to efiect a complete operation and isthen automatically arrested, the operator simply depressing a startingdevice after the keys have been properly adjusted to determine theamount to be indicated.

The adding or accumulating means-The recording devices, as shown,consist of typelevers 403, Figs. 4 to 8, one to each series of keys, andwhich oscillate on a shaft 420, and each is jointed to a strip 404,carrying a rack 405, which actuates the pinions 385, Figs. 4, 18, 20,secured to the adding-wheels 313, carried by a swinging frame D. Fixedpawls 307, Figs. 18, 19, 20, serve to lock the pinions 385 to preventaccidental turning.

Each rack 405 has a slidingmovement on the strip 404 and is drawn backbya spring 460, Figs. 18, 19, 20. A lug 46], Figs. 18 19, on the rackprojects into a recess 462 in the strip and limits the sliding movementof the rack.

When the adding-wheels are turned in the direction of the arrow, Fig.18, the shoulders 311 of cams 311 (one at the side of each wheel) arecarried away from lugs 303 on detents 303, and the inclined edge 9 ofeach cam 311 will nearly contact with the end of its detent 303 when thewheel has been-turned nine units or steps. In moving the tenth step theedge Q will depress the detent, which will thus carry a lug 303 on thedetent 303 out of the path of a stud 405, Figs. 18 and 20, on the rackthat coacts with the adding-wheel of the next higher order of numbers,and the rack will thus be permitted to move a step beyond its normalposition at rest and thus move its coacting pinion and adding-wheel astep upon the completed revolution-of the cam 311 of the wheel of thelower order.

When the detent 303 is depressed, a vertical pawl 304, Figs. 18 and 19,will move forward over a shoulder h of the detent and then prevent itfrom rising until a frame G, Figs. 6, 18, 19, swings back a bar 324,carried thereby, and pushes back the pawls 304 from off the shoulders itof the detents 303, which are then lifted by springs 303. The frame D isswung to carry the pinions of the adder-wheels into and out ofengagement with the racks by either of two independent means actuatedfrom the working shaft.

The left-hand arm 305 of frame D, Figs. 6 and 7, connects with atoggle-link 310, jointed to the other toggle-link 309, the movement ofthe toggle raising and lowering the frame D. The toggle is operated froma reciprocating link 714, the movement being limited by a lug on a plate310 at the end of the link 310.

Thelink 714is connected to an arm 710, Fig. 5, and as the shaft 922,Figs. 5 and 12, oscillates in one direction the rear shoulder 901 on aplate 901 on said shaft contacts with a stud 750 on the lever 710, Fig.5, which swings forward. The return movement brings the shoulder 901 tothe stud, swinging back the lever 710.

The stem 202, Figs. 16 and 17, of each numbered key 201 has notches 202and 202 of different depths. Springs 280 lift the keys and pawls 207,which are secured to longitudinal shafts 220, engage the notches, andhold down the keys, the pawls of each series of keys being on theadjacent shaft, so that after one key of a series is depressed thedepression of another key in the same series will swing out all thepawls and release the depressed key, which will rise. The depression ofthe upper blank key of a row swings the pawls to liberate a key of thatrow improperly depressed, the upper key rising as soon as pressure isremoved therefrom, as the notches of such keys are not so arranged thatthey will be held down by the pawls.

On depressing a key its lower end is brought into the path of one of aseries of studs or stops 430, projecting in both directions from thecoacting rack-strip 404, and the key-stem thus limits and defines thesubsequent movement of the strip and its rack and the extent to whichthe numberwheel is turned, the stops 430 being progressively fartherfrom the key-stems, so the strip moves to a greater extent in proportionas the key depressed indicates a higher number, as shown, and the partsare arranged so that each strip has a movement of one step at eachoperation of the machine, even if no keys may have been depressed.) Thiswill bring the cipher-printing character into printing-line, but withoutturning the adding-wheel. The normal position of the stop 430 on thestrip 404, which coacts with each key numbered 1, is two steps to therear of said key, the position of the other stops, 430, beingprogressively one step farther to the rear of its coacting key-stop, thestud 430, which coacts with each 9 key, being ten steps away.

Adetent-arm 205, Figs. 4, 13, 16, 17, secured on each shaft 220 near itsend, is held in the path of the stop 430 on the strip 404 near the No. 9key by a spring 282, Fig. 13, which also tends to turn the shaft 220 andhold the pawls 207 against the key-stems and in the notches thereof.

WVhen all the keys in a column are up, the pawls 207 are all in the deepnotches 202, and the detentarm 205 of each shaft acts as a stop for thecoacting strip 404, which can only move one step forward until its stop430 strikes the arm 205, securing the result before stated. WV hen oneof said keys is depressed, its pawl 207 is swung out from the deep notchand then enters the shallow notch 202 and holds the key down, and allthe coacting pawls swing out, but not far enough to remove them from thedeep notches 202 of the other keys of the series; but the coactingdetent-arm 205 is carried out of the path of the stop 430 on the strip404, which can then slide forward until its adjacent stop 430 strikesthe stern of the depressed key.

The type-lever shaft 420, Figs. 4 and 5, carries two pendent arms 400,Fig. 3, connected by a cross-strip 401 and cross-rod 402, the lattercarrying a roll 402, Fig. 4, which bears on a cam-plate 900 on the shaft922. The strip 401 holds the lower ends of the typelevers 403 in theirrearmost positions each against the tension of a spring 404.

The rack-strip 404 of each column at each operation where no keys aredepressed moves forward one step until arrested by the detentarm 205,and in this case the rack of said strip will not be moved.

1Vhen a numbered key is depressed, the

strip 404 moves forward until its stop strikes said key, carrying therack without turning the pinions, the frame D being normally ele vated.After the movement of the strips ceases the frame D and pinions aredepressed automatically and each rack engages the pinion and onreturning turns the pinion and addingwhecl,the extent of revolutiondepending on the distance the strip 404 in returning to its positionmoves the rack.

To the swinging frame G, Fig. 6 and dotted lines Figs. 18, 19, areattached two longitudinal rods 300, Fig. 7, connected to a swingingframe K, Figs. 4, 5, 10, 12, 14, 16. A roller-stud 951 on the plate 901,Figs. 5 and 16, and a roller-stud 951, Fig. 14, on the arm 905, Fig. 14,when the machine is at rest are in contact with projections 907 on theframe K, and the swinging frame G is thus held in forward position.

In operating the machine the shaft 922 is rocked and the roller-studs onthe plate 901 and arm 905 are first withdrawn from the projections 907on the two rods 300, and the frame G is drawn to the rear by springs300, Fig. 6, so that the pawls 304, Fig. 18, will bear against the edgesbelow the shoulders /L of the detents 303 under spring tension, and theracks 405 can be drawn by their springs 460 backward, with the lugs 405,Fig. 20, resting against the lugs 303. .Vhen a number key or keys havebeen depressed and the working shaft is operated, each coriperatingstrip 404 is carried forward to an extent depending on the keydepressed. The frame Dis then depressed to bring each pinion 385 intoengagement with its rack 405, and on the next backward movement of eachstrip the number-wheel is turned to an extent corresponding to that towhich the rack was carried forward. If any one wheel is turnedsufiiciently to depress the adjacent detent 303, the backward swing ofthe frame G will then permit the pawl 304 to swing back, when, havingescaped contact with the edge in front of the shoulders 71., it passesabove said shoulder as the cam 311 depresses the detent, and the pawl304 then holds down the detent until the wheel completes its movementand the action for carrying to the next wheel is effected. As themovements of the working parts of the machine terminate the frame Grswings forward and the pawls 304 are swung forward to normal positionand release the detents 303, which then rise. This also moves the racks405 forward to normal position by the contact therewith of the crossbar325,carried by the arms 308 of the frame (f.

It will be understood that each spring 460 forms a flexible connectionbetween one of the strips 404 and the rack 405, supported by said strip.Normally the detent 303" holds the rack 405 in such position that thespring 460, connected to that rack, is under tension.

If during the operation of the machine the strip 404 and rack 405 of theorder to which an additional carrying operation is to be imparted arestationary or in their normal positions at the time the cam 311 of thewheel 313 of the next lower order rocks the lever 303, the spring 460being, as aforesaid, undertension collapses, and although the strip 404re mains stationary the rack 405 is moved relative to said strip througha distance corresponding to one step. If, however, thespring and rack ofthe order to which the carrying is to be transmitted be in motion at thetime when the detent 303 is removed from the path of the stud 405, therack will continue to move with the strip 404 throughout the entiremovement of the latter, the spring 460 acting at such time merely as aconnecting-link between the strip and rack and will not be stopped, asit commonly is,one step before the strip 404 completes its rearwardn'|ovement that is, in the latter case the rack and strip will movetogether throughout the entire rearward movement of the strip,whereasnormally the detent 303", acting on the stud 405, stops the rearwardmovement of the rack one step in advance of the completion of thecorresponding movement of the strip.

The recording merms.The roller-platen 880, Figs. 4,5, 8, is below thecurved arms 403" of the type-levers 403, each, as shown, carrying tensliding type-bars 490.

At eachfull operation effected by one rocking movement of the shaft 922each type-carrier will move at least one step, so that in all columnswhere no key is depressed the carriers will be in position toprintciphers and in columns where keys are depressed the carriers will bemoved different degrees to bring each type-bar in position to print afigure corresponding to the key depressed in such column.

The type-barsare moved to effect the printing by spring-actuated hammers501, one to each type-carrier.

A series of pivoted catches 503, Fig. 8, hold back the hammers, each ofwhich has a lateral lug 501 on its forward end engaging a hook 503 onthe head of a swinging catch 503.

At each operation of the machine the arm 903, Fig. 8, moves to theposition indicated in dotted lines, lifting at the end of its movement alink 511 and rocking a pawl-carrying frame H on its shaft 530. Incolumns where a key is depressed the type-levers 403 will have movedsufficiently to carry projections 403 above studs 559 on pawls 504,pivoted at 505 to the frame H, which pawls have hooks that when theforward end of the frame H descends will engage projections 503 of therespective catches 503 and swing back their upper ends and release thehammers. In columns where no key is depressed the type-levers do notrise sufficiently to carry their projections 403 above the roller-studs559, and when the pawls 504, coacting with such columns, descend theirupper ends will be pushed forward by the projections 403*, and theirhooks will not engage the projections 503, and consequently the hammersin such columns will not be released. To print such ciphers to the rightof the columns of highest order in which a figure is printed, each catch503 has a lug 503 engaging the catch 503 next to the right, (see Fig.9,) and the movement of one catch 503 to release its hammer will betransferred to the next, and so on, and thus effect the movement of allthe other catches 503 to the right, even if no key has been depressed.This permits the hammers to the right to be released to print ciphers;but no catches to the left will be moved. 7

To restore the hammers to normal position, there is a swinging frame I,Fig. 8, consisting of the side levers 502 and connecting-bars 550 558,the latter extending across under the hammers. A projection 900 on thecam 900 on the shaft 922 engages the bar 550 and swings the frame tolift the bar 558 and the hammers as the shaft 922 rocks on returning toposition. In starting, the frame I swings to carry the bar 558 down,leaving the hammers free.

The adding 07* (rowan/ale ting operationa- To add different amountstogether, the proper keys are depressed, and the starting-key 103, Fig.14, is depressed, lifting the latch 178 and permitting the shaft 176 tomake one effective movement, when the connecting-pitman 109 will rockthe shaft 922 and the main cam 900, Fig. 4, will be rocked and permitthe frame J, Figs. 4 and 5, to swing forward, and thus permit thetype-levers and strips 404 to move, under the influence of the springs404, until in those columns where no keys are depressed the strips arearrested by the detents 205, Figs. 13 and 16, and where keys have beendepressed the strips are arrested by their respective keystops. Theracks 405 remain stationary until the strips 404 have each moved oneunit, when the racks will also move. This permits each strip when no keyis depressed to move sufficiently to bring the type-carrier intoposition to print a cipher at the printing-line.

The first portion, 900, of the cam 900, Figs. 4 and 8, permits nomovement of the frame J, Fig. 4. A second portion, 900 permits theentire forward movement of the frame J, and a third portion, 900, doesnot affectthe movement of the frame. This allows certain movements ofother parts while the strips 404 and racks 405 are not in motion. Afterthe strips are arrested, the pinions are thrown into gear with the racksand on the return motion of the cam 900 the strips 404 and racks 405 arereturned to their normal position, the racks turning the pinions anumber of units, depending on the extent of return movements of thestrips 404 and equal to the numbers expressed by the depressed keys. Thefinal part of the return movement of the shaft 922 causes the plate 901,Figs. 5 and 10, to move the lever 710 and the link 714 to break thejoint of the toggle 309 310 and permit the frame D, Fig. 19, to rise anddisengage the pinions from the racks. 1

To lock down a depressed key and lock all other keys in the same seriesagainst depression during the operating movements of the shaft 922, aseries of sliding strips 204, Figs. 16, 17, have projections 20 1adapted to enter holes 204 in the key-stems which are depressed. Thestrips are moved in one direction by springs 20 1 and in the other by across-rod 927, carried by the frame K, Figs. 1, 16. Vhen the shaft 922begins to oscillate, theframe K will. swing and allow the strips 204 tomove toward the rear under shoulders 202 of keys that are not depressedand hold them up, and a projection 20 1 will enter the hole 20 1 of adepressed key and lock it down even if its pawl be accidentallydisengaged from its notch 202*.

The shafts 220 can be rocked automatically to throw out all the pawls207 by a sliding cross-strip 208, Figs. 13, 16, 17, having elongatedslots into which project lugs 205, on the arms 205. This is effectedfrom the rocking of the shaft922. Thus at the commencement of the motionof the shaft 922, Fig. 1 1, the arm 905 carries a latch 916 past a stud910 on a lever 910, a spring permitting the latch to yield and pass bythe stud, and on the return motion of the shaft 922 the beveled edge ofthe latch 916, contacting with the stud 910, swings the lever 910, andpassing by permits the lever to return to its normal position under theaction of a spring 1000, Fig. 1 1. This lever 910 is connected bya link915 with an angle-lever 911, Figs. 14,15, 16, pivoted at 911 to the sideframe and provided with an arm 911", Fig. 17, which extends looselythrough a slot in the end of the strip 208, and the movement of thelever 910 will thus rock the lever 911 and slide the strip 208 in thedirection of the arrow, Fig. 17, and thereby withdraw all the pawls 207and release any key which may have been depressed.

Record Z12 g totals and eubt0mZa-To record the total, it is necessary tocontrol the movements of the recording devices by the accumulatingmechanism as, for instance, by controlling the movements of the racks bythe pinions of the wheels 313, the racks in such case being engaged withthe pinions when the racks and the strips 4:0 1 are moving forward underthe action of the springs 101. The rotatory movement of the pinions andwheels 313 is thus in the reverse direction to that when accumulating,the effect being that the amount accumulated is subtracted as thewheels'and pinions return to the zero position. The pinion-cams 311,Figs. 18, 20, arrest the reverse rotation of the wheels at the zeroposition when their shoulders engage the lugs 303 of the detents 303. Asin accumulating the wheels have advanced in the direction of the arrow,Fig. 18, a number of steps from the zero position, so in returning tothe Zero position the racks and strips are allowed to move forward thesame number of steps until the shoulders of the cams contact with thedetents. thus moving the type-levers correspondingly and bringing theproper types in position to indicate the total as accumulated. Theaccumulating-wheels will be left at Zero after registering or printingthe total, except when the total is to be reaccumulated on the wheels313, which is effected by keeping the racks and pinions engaged when theracks are again moved to the rear or restored. These results areeffected by so setting the parts as to vary the times of engaging anddisengaging the racks and pinions, and one means of doing this is by twokeys, distinguished as total and subtotal keys 7 02 and 702 Figs. 12,16, and 17.

At the rear of the shaft 922 is a shaft on which rocks a plate 707,carrying two dogs 711 712, normally held in contact with stops by aconnecting-spring. (Shown in dotted lines, Fig. 12.) To this plate'ispivoted a link 713, which is raised by a spring and has a notch adaptedto engage the stud 750 in the lever 710. Two parallel levers 705 706extend past'the keys 702 702, and past the plate 901, and the lever 706is connected by a link 715, Fig. 9, with the link 713.

WVhen the total-key 702, Figs. 2, 10, 12, 17, is depressed, its stud 737Fig. 10, depresses the lever 706, Figs. 10 and 11, and the connectedlink 713, the slot in which, Fig. 5, engages the stud 7 50 on the lever710, so that the lever 710 and link 714 will be operated from the plate707. hen the shaft 922 commences to move, the roll 952, Figs. 5 and 12,on the arm of the plate 901 moving upward contacts with the rear edge ofa dog 712, rocking the plate 707 in the reverse direction of its arrow,Fig. 12, and thelink 713,(now connected to the lever 710, Fig. 5,) andthrough the link 71 1 and connections straightens out the toggle anddepresses frame D, causing the pinions to engage the racks as the strips101 move forward with the racks until the wheels 312, turning in thereverse direction of the arrow, Fig. 18, return to the zero position,where they are arrested by the shoulders of the cams 311 contacting withthe projections 303 of the detents 303. The racks will be held in theirforward position during the printing action, while the part 900 of thecam 900 moves in one direction past the roll 402", Figs. 1 and 8. On thereturn movement the roll 952, Fig. 12, contacts with the forward edge ofthe upper dog 711 and rocks the plate 7 07 in the direction of itsarrow, and the link 713 pulls the lever 710 rearwardly, bending thetoggle and lifting the frame D, disengaging the pinions from the racks.The continued movement of the cam 900 in the direction of its arrow,Figs. 1 and 8, restores the racks to their forward position.

IIO

The subtotal-key 702 Figs. 2, 10, 11, 12, 17, operates on a second lever7 05, Fig. 11, which has a lug 705 Fig. 10, which when the lever isdepressed contacts with the tail of the dog 711 and depresses the tailof this dog, swinging it out of the path of the roll 952, whichtherefore in such case cannot operate it to rock the plate 7 07, andrenders the said plate then inoperative to shift the lever 710 and theracks. The subtotal-key stud 7 37 projects over both the levers 7 05 and7 06, so that when the subtotal-key is depressed the lever 7 06 iscarried down with the lever 7 05 and the open-slotted link 713 isengaged with the stud 7 50 on the lever 710, and therefore when themachine is thus operated the pinions are thrown into engagement with theracks on the plate 7 07 being rocked by the contact of the stud 952 andpawl 712 before the racks move forward, and they continue engaged on thereverse movement (as the stud 952 on descending will not contact withthe pawl 711) until the racks are restored to their rear position, whenthe frame D is raised and the pinions are disengaged by the action ofthe front shoulder 901", Fig. 12, on the plate 901 contacting with thestud 750 on the lever 710, as in accumulating.

The keys 7 02 and 7 02 each carries a stud 7 02, and when either of thekeys 7 02 is depressed its stud swings an anchor-plate 703, Fig. 12, outof its path and under the other stud, thus preventing the other key frombeing depressed, so that both cannot be depressed at once.

There are two pawls 704, Fig. 12, each adapted to engage a notch 7 02 ina key-stem, and each pawlhas a stud 704, which when the machine is atrest engages a shoulder 300 Figs. 6 and 12, of the connecting-rod 300,and when the shaft 922 has about completed its movement the rod 300 willbe moved with the frame K toward the front of the machine, andits-shoulder 300 will engage the stud 7 04 on the pawl and disengage thelatter from the key-stem, and the key will then rise under the influenceof its spring 7 02 It is desirable to prevent the machine from beingoperated when either of the total-keys is in a partly-depressedposition, and to this end there is provided a detent, the same being alug 137. There is pivoted to the slotted link 713, Figs. 5 and 10, alink 912, connected to an arm 913 on a cross-shaft 926, carrying also anarm 914, Fig. 14, extending upward at the side of the starting-lever105, and the lug 137 is on this lever, and when the starting-key isdepressed is in the path of movecan then be depressed. When eitherof thetotal-keys 7 02 or 702 is depressed, it is necessary to swing thedetents 205 out of the paths of the studs 430. so the strips 404 andracks may move under the control of the pinions. This is effected, Fig.12, by a projection 7 02 on each of the total-keys, which projectionscontact with a stud 213 on a pivoted arm 213, Fig. 17, the rear end ofwhich, Figs. 12 and 13, contacts with a bell-crank lever 211, one end ofwhich enters a slot in the strip 208, but does not interfere with theusual individual movements of the detents. WVhen a total-key isdepressed, its projection 7 02 depresses the arm 213, which rocks thebellcrank lever 211 and moves the strip to the left, thus swinging allthe detents out of their normal positions and releasing the strips 404.

To prevent both total and subtotal keys being depressed at the sametime, an anchor-plate 703 is pivoted between the total-key stems 702 and702 and normally held in a central position by a spring 703 The platehas two projecting arms 7 03 with angular faces, and on each key-stem isa stud 7 02 in position to contact with one of the projecting arms.

From the foregoing it will be seen, referring to Figs. 5, 6, 10, and 11,that the swinging of the lever 710 straightens or bends the toggle andis the means of throwing the racks and pinions into and out of gear, andthat in the normal operation of the machine in accumulating the lever710 is swung forward by the contact of the shoulder 901 of the plate 901to bring the gears into engagement and on the next action the shoulder901 reverses this arrangement. It will further. be seen that when thetotal key 7 02 is depressed, depressing the levers 706 and 713, thelever 710 is then operatively connected with the plate 707, and as theplate 707 is rocked by the contact of the parts 952 and 712 the lever710 swings with its stud 750 following the shoulder 901 so that thelever 710 swings forward (when normally it would be at rest) and thegears are engaged at once as the lever 710 begins its movement. Theracks are therefore engaged with the pinions before the strips moveforward. When on the reverse rocking of the shaft 922 the part 952strikes the part 711, the plate 7 07 is rocked in the reverse directionand the lever 710 swung back, and the gears are disengaged when thewheels are at Zero and before the racks move backward.

When the subtotal key 702 is depressed and both the levers 705 and 706carried down, the stud 7 05 so tilts the part 711 that it will not bestruck by the part 952 and the plate 7 07 will not be rocked by thecontact of these parts, so that the lever 710 will not swing back untilthe shoulder 901 strikes the stud 7 50 on said lever, with the resultthat the gears remain in engagement during the backward movement of thestrips.

From the foregoing it will be seen that the accumulating devices may atdifferent times be independently controlled by two wholly independentoperating means, which may be manipulated to determine the subsequentoperations of the machine. First, the means that in accumulating putsthe gears into engagement on one movement of the working shaft and outof engagement on the reverse movement; second, the means that insecuring a total so sets the parts that the gears will be thrown intoand out of connection at different times from that resulting from thefirst means in accumulating. Further, it will be seen that the saiddevices may be put under the joint action of both the other means inprinting a subtotal. There are therefore devices capable of independentconnection with the gears one set of devices that only operate inaccumulating and another set of devices that only operate in taking atotal or subtotal. his distinguishes the machine herein set forth fromall others.

The above-described machine also differs from all others in that theoperations of the parts in printing a total or subtotal are alldetermined by the positions of devices adjusted or set in positionbefore the operation of the machine begins and Without any manipulationof the parts during the said operationthat is, causing the machine toprint a total or subtotal is secured by the manipulation of parts whollybefore commencement of the operation of the machine. The importance ofthese features is evident in considering the operations when the machineis driven in its operations by a motor at a high speed. Constructionswhich in taking a total or sub total require manipulation of the partsduring the operation of the machine may be effectively employed when themachine is worked by hand and time is afforded to change adjustments atproper intervals during such working; but when the entire workingoperation is effected in a fraction of a second, as with power-drivenmachines, it is impossible to shift the positions of parts manually atany predetermined moment, and it will be seen that by providing devicesthat may be set before the operations begin and which will thenpositively and automatically control such operations I secure theeflective taking of totals and subtotals at the high-speed operations ofa power-driven machine.

The stopping and starting means may be embodied in different forms andused with different control devices for actuating the registeringdevices whatever be their character, whether merely indicators orrecorders, and it will be seen that while there is acontinuously-rotating driving-shaft the working shaft, from which theother parts are actuated, is rocked only a part revolution after beingconnected with the driving-shaft and is then automatically arrestedafter effecting a complete action of the parts required to set theregistering device. it will further be seen that the temporaryconnection between the two shafts results from the depression of thestarting-key only and that therefore any of the number or other keysmaybe set or reset before any operation on the register results, andthat after any number is registered the connection with the motor ceasesautomatically. It will further be seen that by providing means toseparate the pinions and racks prior to the movements of the racks ineither direction the numbers may be added or subtracted or totalized, asrequired, and that the shifting of the parts to engage or disengage thesame may be effected through any suitable means by the operation of thespecial keys, and that the adjustment of parts to indicate or secure atotal or subtotal is effected before the operating parts are put intoconnection with the motor.

In some cases it is desirable in type-writing or computing machines tovary the force of the printing-levers. To effect this in the presentinstance, the springs which actuate the hammers are attached to a framecapable of a limited movement in order to permit a variation in tension,so that the hammers may strike harder or softer blows, as may berequired. This frame consists of a cross-bar 521 and two arms 506, hungon a cross-rod 520, and the springs 580 are connected to the cross-bar521. The frame is raised or lowered to vary the tension by any suitablemeans, as a cam 522, Fig. 8. Any suitable devices for turning the cam toand locking it in desired position may be employed.

Vhile I have referred to the parts for securing atotal and subtotal askeys, it will of course be understood that the same results may besecured whether these parts have keyheads for being pressed down by thefinger or are otherwise shifted. Further, it will be understood that theterms total and subtotal are merely means of designating two totals,meaning that in one case the total is recorded and the machine clearedand in the other that it is recorded and retained in the machine to becarried into subsequent operations.

Several of the pa tentable features of the improvements in adding andrecording machines described in the foregoing specification form thesubject-matter of the claims of an application filed May 25, 190 i, as adivision of this application and bearing Serial No. 209,673, andtherefore such features of the invention are not claimed herein.

I claim as my invention- 1. In an adding and recording machine, meansfor securing a record of additions or accumulations and either leavingthe accumulating devices set at zero or retaining the accumulation, saidmeans adapted in each case

